e-CALLISTOFITS ANALYZER
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Version 3.1.0 is hereSee what’s new

A clearer view of our dynamic Sun.

From radio bursts to erupting coronal structures. Analyze e-CALLISTO spectra and solar images in one connected, open-source toolkit.

Download v3.1.0Explore the user guide
Windows · Linux · macOSFree & open source · MITPublished in RAS Techniques & Instruments
e-CALLISTO FITS Analyzer 3.1.0ONE PACKAGE · TWO TOOLS
e-CALLISTO FITS Analyzer · Process and analyze dynamic spectra
e-CALLISTO FITS Analyzer · Process and analyze dynamic spectraGREENLAND · 23 APR 2024
v3.1.0Latest release · October 2026
3Platforms · Windows, Linux, macOS
FreeOpen source · MIT License
Two tools. One connected picture.

Choose your view of the Sun.

Start with a radio observation or an image sequence. Both tools come in the same free software package.

01 · RADIO

e-CALLISTO FITS Analyzer

Process and analyze e-CALLISTO dynamic spectra, isolate radio bursts, track their drift and estimate shock speeds and coronal magnetic fields.

Explore radio analysis
Tool 01 · e-CALLISTO FITS Analyzer

Follow the signal.
Find the science.

Process and analyze e-CALLISTO dynamic spectra, from the first FITS file to a publication-ready figure.

Reveal the structure

Subtract the background, tune display thresholds and clean radio-frequency interference from raw spectra.

  • Mean, median or median (dB) background
  • RFI cleaning and noise clipping
  • Combine files across time and frequency

Measure the burst

Isolate features, extract intensity maxima and quantify drift, shock speed and Type II band splitting.

  • Automatic ridge tracking
  • Five coronal density models
  • Band-splitting magnetic field

See the wider event

Bring GOES X-rays, CME catalogs, geomagnetic indices and solar imagery into the context of your observation.

  • GOES XRS & SEP, Kp, Dst
  • LASCO CME catalog
  • e-CALLISTO, Learmonth & STEREO/WAVES
Tool 02 · Solar Image Analyzer

Follow the eruption.
Explore its geometry.

Two connected workspaces bring solar images, measurements and three-dimensional CME fitting into your analysis. PFSS & GCS new in v3.1.0

02 / GCS CME FITTING

One CME.
Multiple perspectives.

Fit a Graduated Cylindrical Shell to coronagraph images from multiple viewpoints. Evaluate CME geometry and propagation with a shared three-dimensional model.

Longitude & latitudeTiltHeightHalf-angleThickness

Record fits, fit the shock separately, compare height–time evolution and export your fitting results.

Explore GCS fitting
Red GCS wireframe fitted across STEREO B COR2, SOHO LASCO C2 and STEREO A COR2 views
STEREO B · SOHO · STEREO A — one shared model
Generated with the analyzer

See the science in motion.

Play examples exported from the Solar Image Analyzer and GCS tools.

SDO / AIA 304 ÅA solar image sequence exported from the Solar Image Analyzer.Download example · MP4 · 4.7 MB
GCS CME fitting in motionA shared fitted shell follows the CME through multiple viewpoints.Download example · MP4 · 1.4 MB
New in v3.1.0

Sharper measurements.
A wider view.

Ridge tracking, five density models, multi-view GCS fitting, PFSS modelling and publication-style exports. Full release notes

Radio burst analysis

  • Automatic ridge tracking
  • Selectable time origin
  • Five coronal density models

GCS CME and shock fitting

  • Multi-view reconstruction
  • Separate shock model
  • Staged refinement and exports

Solar Image Analysis

  • PFSS magnetic field modelling
  • SOHO/EIT imaging
  • Sphere-based Circle Fit

Publication-ready figures

  • One consistent style
  • More formats

Opening and processing data

  • Drag and drop
  • Recent files and projects
  • ARTEMIS-IV support

e-CALLISTO downloader

  • Burst List
  • Stations that observed
Start curious. Go deeper.

Your next discovery
starts here.

The complete user guide covers every window, method and formula, from your first FITS file to three-dimensional CME reconstruction. Read it online or keep the PDF.

01

User guide

Searchable, illustrated, chapter by chapter.

02

Tutorials

Follow an observation from import to export.

03

The science

Understand the physics behind the spectrum.

Cover of the e-CALLISTO FITS Analyzer User Guide, version 3.1.0
Science works better together

A shared sky.
A shared conversation.

Ask questions, compare methods and share what you’re learning with researchers and students using the analyzer.

Join the discussionStar on GitHub
Built for research

Using the analyzer
in your work?

Credit the software and make your methods easier to reproduce. The paper is published in RAS Techniques and Instruments.

Citation & BibTeX Explore the source on GitHub

Ready to look closer at the Sun?

Download e-CALLISTO FITS Analyzer v3.1.0 for Windows, Linux or macOS. Free, open source and ready for your next observation.

Download v3.1.0Read the guide